Answer:
Fixed-interval
Step-by-step explanation:
Fixed-interval schedule: In psychology, the term "fixed-interval schedule" is described as one of the different reinforcement schedules and is a part of the operant conditioning. In fixed-interval schedule, reinforcement is being provided to a specific and desired response after a "predictable amount" of time has elapsed.
In the question above, the given statement represents "fixed-interval schedule" of reinforcement.